Well I got one today, and yes it not only works but is completely awesome as well.
I just followed sp00nhead's link: http://www.wiili.org/index.php/Wiimote_linux_tutorial
with some aditional instructions here: http://www.wiili.org/index.php/WMD#Ubuntu
and I had to apt-get the following to build the prerequisites (you might need more): libxosd-dev xosd-bin bluez-hcidump autoconf automake python-xlib python-pygame also modifying the /etc/X11/xorg.conf is tricky as it seems to get overwritten a lot.
Seems to me there are only 2 things that need to be done to support the Wiimote plug and play:
1. Make debian packages out of the needed software (as far as that hasn't been done already).
2. Configure LMCE to recognize and configure it automaticly (already shows up, but as mobile phone).
I think I could manage the first, but I will need help with the second one from a more experienced veteran. Would be really nice to just turn it on and select "Use this device as Wiimote" (or maybe something more general) and then light a few candles since you don't have a led-bar yet either.